Suspension and Components
Circle Track Suspension Parts: Control Arms, Shocks & Springs for IMCA & Late Models at JJ Motorsports
Optimize handling and stability on the track with premium circle track suspension components from JJ Motorsports. Our selection includes control arms, shocks, springs, weight jacks, and more, designed for superior cornering, durability, and performance in late models, modifieds, street stocks, and IMCA dirt racing. Compatible with GM Metric frames and other setups, these high-quality parts ensure reliable operation and enhanced traction under intense racing conditions.
Shop trusted brands like Allstar Performance. Explore related categories such as circle track steering and components for precision control or circle track brakes for stopping power.
Top Circle Track Suspension Products
- Lower Control Arm Kit for 1978-88 GM Metric Street Stock & Hobby Stock, Includes Ball Joints & Greasable Bushings – This kit includes stamped steel lower control arms with black powdercoat finish, greasable bushings, and weld-in greasable ball joints for enhanced suspension performance. It is compatible with 1978-88 GM Metric G-Body vehicles and designed for street stock and hobby stock racing applications.
- Allstar Performance Metric Upper Control Arm Left 9in ALL57984 – This tubular upper control arm is designed for the driver side on GM Metric Frames, measuring 9.00 inches long with a bolt-in ball joint and steel construction finished in black powder coat. It features greasable pivot points and is ideal for hobby stock race cars, providing a perfect fit and function.
- Spring Cup Weight Jack Bolt Combo ONE PAIR IMCA Modified Dirt USRA B-Mod Cups – This kit includes two 8" long steel jack bolts with 1-8 course threads and two steel spring cups with a 5-inch outer diameter. It is designed for IMCA Modified, Dirt, and USRA B-Mod cups.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Hyperco Rear Spring 5in ID 13in Tall 18S-200
HYPERCO
$98.00If you're tuning your suspension for consistent rear-end geometry and predictable handling characteristics, spring rate selection is non-negotiable. The Hyperco 18S-200 delivers a 200 lb/in spring rate in a compact 13-inch package, making it ideal for...HYP18S-200- SKU:
- HYP18S-200
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- MFG Part #:
- 18S-200
$98.00 -
Hyperco Rear Spring 5in ID 13in Tall 18S-185
HYPERCO
$98.00If you're tuning your rear suspension for precise weight transfer and consistent handling characteristics, a properly matched coil spring is non-negotiable. The Hyperco 18S-185 delivers a 185 lb/in spring rate in a compact 13-inch package, giving you the...HYP18S-185- SKU:
- HYP18S-185
- Availability:
- Ships Same Business Day
- Weight:
- 6.41 LBS
- MFG Part #:
- 18S-185
$98.00 -
Hyperco Rear Spring 5in ID 13in Tall 18S-175
HYPERCO
$98.00If you're dialing in your suspension geometry or running a dedicated track setup, spring rate consistency is non-negotiable. The Hyperco 18S-175 delivers a proven 175 lb/in rate in a compact 13-inch package, giving you the predictable compliance needed...HYP18S-175- SKU:
- HYP18S-175
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- MFG Part #:
- 18S-175
$98.00 -
Hyperco Rear Spring 5in ID 13in Tall 18S-165
HYPERCO
$98.00Rear suspension geometry demands precision, and the Hyperco 18S-165 delivers predictable, linear spring rates that give you consistent chassis dynamics through every corner. At 165 lb/in, this spring is engineered for vehicles requiring moderate spring...HYP18S-165- SKU:
- HYP18S-165
- Availability:
- Ships Same Business Day
- Weight:
- 6.31 LBS
- MFG Part #:
- 18S-165
$98.00 -
Hyperco Rear Spring 5in ID 13in Tall 18S-150
HYPERCO
$98.00If you're tuning your rear suspension for precision handling and load control, you need a spring rate matched to your specific setup—not a guessing game. The Hyperco 18S-150 delivers a predictable 150 lb/in rate in a compact 13-inch package, giving you...HYP18S-150- SKU:
- HYP18S-150
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 18S-150
$98.00 -
Hyperco Rear Spring 5in ID 13in Tall 18S-125
HYPERCO
$98.00If you're tuning a rear-end suspension setup or replacing a worn spring, the Hyperco 18S-125 delivers consistent, predictable spring rate performance without compromise. At 125 lb/in, this conventional coil spring maintains proper ride height and load...HYP18S-125- SKU:
- HYP18S-125
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- MFG Part #:
- 18S-125
$98.00 -
Hyperco Rear Spring 5in ID 13in Tall 18S-100
HYPERCO
$98.00A properly matched rear spring is foundational to your suspension's handling characteristics and load capacity. The Hyperco 18S-100 delivers a 100 lb/in rate in a compact 13-inch package, making it ideal for vehicles requiring progressive weight transfer...HYP18S-100- SKU:
- HYP18S-100
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- MFG Part #:
- 18S-100
$98.00 -
Hyperco Floater Divider 18DS100
HYPERCO
$41.00Proper spring control is essential for consistent suspension performance and predictable handling characteristics on the track. The Hyperco Floater Divider 18DS100 manages spring preload and travel without binding, allowing your suspension to respond...HYP18DS100- SKU:
- HYP18DS100
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- MFG Part #:
- 18DS100
$41.00 -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0250
HYPERCO
$86.00Precision suspension tuning demands a spring that delivers consistent, predictable performance lap after lap. The Hyperco 188D0250 coil-over spring offers a 250 lb/in rate ideal for dedicated road course and autocross setups where weight transfer control...HYP188D0250- SKU:
- HYP188D0250
- Availability:
- Ships Same Business Day
- Weight:
- 1.92 LBS
- MFG Part #:
- 188D0250
$86.00Qty in Cart: 0Quantity:Price:$86.00Subtotal: -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0225
HYPERCO
$86.00Precision suspension tuning demands a spring that responds predictably under load—this Hyperco coil-over delivers the consistent 225 lb/in rate your setup requires for repeatable performance. Whether you're dialing in a road course or drag application,...HYP188D0225- SKU:
- HYP188D0225
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MFG Part #:
- 188D0225
$86.00Qty in Cart: 0Quantity:Price:$86.00Subtotal: -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0200
HYPERCO
$86.00A properly tuned suspension starts with the right spring rate, and this Hyperco coil-over delivers the 200 lb/in stiffness needed for controlled weight transfer and consistent handling across track sessions. Whether you're fine-tuning a road course setup...HYP188D0200- SKU:
- HYP188D0200
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MFG Part #:
- 188D0200
$86.00 -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0175
HYPERCO
$86.00Whether you're fine-tuning suspension geometry on a road course or dialing in ride height for autocross competition, coil-over springs are fundamental to achieving predictable handling and consistent performance. This Hyperco unit delivers a stiff 175...HYP188D0175- SKU:
- HYP188D0175
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MFG Part #:
- 188D0175
$86.00 -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0165
HYPERCO
$86.00Precision suspension tuning demands a spring rate that matches your application exactly—this Hyperco coil-over delivers the 165 lb/in stiffness needed for responsive handling without compromising ride quality. Whether you're dialing in a road course...HYP188D0165- SKU:
- HYP188D0165
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- MFG Part #:
- 188D0165
$86.00 -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0150
HYPERCO
$86.00A coil-over spring setup demands precision components that respond predictably under load, and this Hyperco unit delivers exactly that with its consistent 150 lb/in rate and robust construction. Whether you're fine-tuning suspension geometry on a road...HYP188D0150- SKU:
- HYP188D0150
- Availability:
- Ships Same Business Day
- Weight:
- 1.76 LBS
- MFG Part #:
- 188D0150
$86.00 -
Hyperco Coil Over Spring 1.875in ID 8in Tall 188D0125
HYPERCO
$86.00Precision suspension tuning demands springs engineered for repeatability and durability—this Hyperco coil-over delivers both with a proven 125 lb/in rate ideal for road racing, autocross, and street applications. The 1.875" inner diameter fits most...HYP188D0125- SKU:
- HYP188D0125
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 188D0125
$86.00 -
Hyperco Coil Over Spring 2.5in ID 8in Tall 188B1000
HYPERCO
$86.00A 1000 lb/in spring rate delivers the precision tuning your suspension demands, whether you're dialing in track geometry or fine-tuning street performance. The Hyperco 188B1000 coil-over spring integrates seamlessly into existing coil-over systems,...HYP188B1000- SKU:
- HYP188B1000
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 188B1000
$86.00 -
Hyperco Coil Over Spring 2.5in ID 8in Tall 188B0900
HYPERCO
$86.00If you're building a dedicated track car or upgrading your suspension geometry, spring rate is non-negotiable—and 900 lb/in delivers the stiffness needed for responsive handling without sacrificing bottoming-out protection. The Hyperco 188B0900 is...HYP188B0900- SKU:
- HYP188B0900
- Availability:
- Ships Same Business Day
- Weight:
- 4.82 LBS
- MFG Part #:
- 188B0900
$86.00Qty in Cart: 0Quantity:Price:$86.00Subtotal: -
Hyperco Coil Over Spring 2.5in ID 8in Tall 188B0850
HYPERCO
$86.00Precision suspension tuning demands a coil-over spring that matches your exact setup requirements. This Hyperco unit delivers the stiffness you need for consistent ride height control and predictable handling dynamics, whether you're dialing in a road...HYP188B0850- SKU:
- HYP188B0850
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- MFG Part #:
- 188B0850
$86.00 -
Hyperco Coil Over Spring 2.5in ID 8in Tall 188B0800
HYPERCO
$86.00If you're building a race-ready suspension or upgrading your coil-over setup, spring rate is everything—and 800 lb/in delivers the responsive, predictable handling you need for track performance. This Hyperco coil-over spring pairs precision engineering...HYP188B0800- SKU:
- HYP188B0800
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- MFG Part #:
- 188B0800
$86.00 -
Hyperco Coil Over Spring 2.5in ID 8in Tall 188B0700
HYPERCO
$86.00When you're dialing in suspension geometry for track performance or building a custom setup, spring rate consistency is non-negotiable. The Hyperco Coil Over Spring delivers the precise 700 lb/in rate you need for predictable handling and controlled body...HYP188B0700- SKU:
- HYP188B0700
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- MFG Part #:
- 188B0700
$86.00
